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Over the backbone of the Hoosac Range A superb motorway of scenic splendor, connecting Housatonic River and Westfield River Valleys. On direct highway East and West across Massachusetts. It rises at gradient by six percent, on graceful curves, to summit 2300 feet above the water. First of great state road mountain cross-overs. Opened September 10, 1919 with a picnic on the sky-line. Here Mrs. George Westinghouse raised the American flag. The Ladder cost $240,000 and is the most traveled mountain road in America.